Bibliographic Citation
| Document |  0 K |
|---|---|
| Title | The plutonium-oxygen phase diagram |
| Creator/Author | Haschke, J.M. |
| Publication Date | 1990 Jan 01 |
| OSTI Identifier | OSTI ID: 6952196; Legacy ID: DE90014980 |
| Report Number(s) | LA-UR-90-2567; CONF-900846--1 |
| DOE Contract Number | W-7405-ENG-36 |
| Other Number(s) | Other: ON: DE90014980 |
| Resource Type | Conference |
| Specific Type | Technical Report |
| Resource Relation | Conference: International symposium to commemorate the 50th anniversary of discovery of transuranium elements, Washington, DC (USA), 26-31 Aug 1990 |
| Research Org | Los Alamos National Lab., NM (USA) |
| Sponsoring Org | DOE/DP |
| Subject | 36 MATERIALS SCIENCE; 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; OXYGEN; PHASE DIAGRAMS; PLUTONIUM; PLUTONIUM OXIDES; CERIUM; CHEMICAL PROPERTIES; HYDROLYSIS; PRASEODYMIUM; THERMODYNAMIC PROPERTIES; WATER; X-RAY DIFFRACTION; ACTINIDE COMPOUNDS; ACTINIDES; CHALCOGENIDES; CHEMICAL REACTIONS; COHERENT SCATTERING; DECOMPOSITION; DIAGRAMS; DIFFRACTION; ELEMENTS; HYDROGEN COMPOUNDS; LYSIS; METALS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; PLUTONIUM COMPOUNDS; RARE EARTHS; SCATTERING; SOLVOLYSIS; TRANSURANIUM COMPOUNDS; TRANSURANIUM ELEMENTS |
| Description/Abstract | Identification of products formed by the reaction of plutonium metal with liquid water at 23{degree}C indicates that the plutonium-oxygen phase diagram is similar to the cerium-oxygen and praseodymium-oxygen diagrams. Quantitative measurements of H{sub 2} formation and analytical data suggest that a sequence of hydrolysis reactions produces oxide hydrides of trivalent plutonium, Pu{sub 2}O{sub 3}, mixed-valent oxides and PuO{sub 2}. The intermediate oxides are the n {equals} 7, 9, 10 and 12 members of the Pu{sub n}O{sub 2n{minus}2} homologous series. Properties of the residue formed by thermal decomposition of the initial hydrolysis product, plutonium monoxide monhydride (PuOH), are consistent with the formation of metastable plutonium monoxide. Crystal-chemical, thermodynamic, and kinetic factors are evaluated, but definitive assignment of the equilibrium Pu-O diagram is not possible. 22 refs., 6 figs., 1 tab. |
| Country of Publication | United States |
| Language | English |
| Format | Medium: ED; Size: Pages: (22 p) |
| Availability | NTIS, PC A03/MF A01; OSTI; INIS; GPO Dep. |
| System Entry Date | 2009 Apr 02 |
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